Metal-punch



. designates abase, having a dove-tailed groove PATENT? OFFICE.

THEODORE E. CLARK, OF "OLEONE, OREGON.

METAL-PUNCH.

SPECIFICATION forming part of Letters Patent No. 519,240, dated May1,1894.

Application filed August 17,1893. Serial N0. 4833384. (No model.)

To all whom it may concern,.-

Beit known that I, ITHEODORE E. CLARK, a citizen of the United States,residingatOleone, in the county of Multnomah and State of Oregon,haveinvented certain new and useful Improvements in Metal-Punches; and Ido hereby declare the following to be a full, clear, and exact.description of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.- y

This invention relates to certain new and useful improvements in metalpunches, and has for its object to increase the efficiency of suchdevices without materially adding to the simple construction usuallyemployed.

With these and other objects in view, the' invention consists of theconstruction and arrangement of the several parts which will be morefully hereinafter described and claimed.

In the drawings :-Figure l is a perspective View of a punch embodyingthe invention. Fig. 2 is a central longitudinal section on the line .7c-Fig. '1. Figx is a detail perspective view of the operating handle, yokeand punch removed. Fig. 4E is a detail perspective View of a slightlymodified form of punch.

Similar numerals of reference are employed to indicate correspondingparts in the several figures of the drawings.

Referring to the drawings: The numeral l in the outer part thereof, witha dove-tailed center-plate 2 removably mounted therein, having anopening 3, aligning with a similar opening in the base and in which thepunch works. Rising from the rear of the said base 1, is a goose-neck 4having a front depending head 5 with a vertical opening 6 extendingtherethrough. The upper opposite sides of said head 5 are provided withears 7 having slots 8 on the inner opposing surfaces thereof, and thesaid ears form an entrance slot for the rear eccentric head 9 of anoperating handle 10 which is pivotally mounted between the said ears byaremovable pin or pivot ll. `Snrrounding the said operating handle 10,adjacent to the head 9 thereof, is ayoke 12, having its upper endsturned over the said head 9, and in which is seated at its lower side, apunch 13, having a flanged head 14 secured removably in the lowerpart ofthe said yoke.

`changed at any time it may be `terials and the `of the constructionwill become readily apparent to those using the device and to those `thehandle,

The lower end of the punch 13 is shouldered as in constructions of asimilar nature and as shown in Fig. 4, the extreme lowerengaging end ofsaid punch may be beveled in order to more conveniently punch largeholes. The slots 8 in the ears 7 permit of the mounting and freemovement of the yoke between the said ears and in raising the operatinghandle to elevate the punch carried by the yoke, the upward movement of`said handle is limited by the rear edge of the yoke striking the rear`terminating walls of the slots 8 and thereby serving as a guide todetermine when the punch is elevated sufficiently to permit the materialto be punched to be placed thereunder. By removing the pin orpivot 1land elevatingthe handle l0 together with the yoke thereon, the punch canbe readily withdrawn from the head 5 and thereby conveniently foundnecessary. The punch is intended especially for gum ming cross` cut sawsand in this latter operation the saw can be gummed in a short space oftime without injuring it. It will be understood also that the punchmaybe made in any size desirableand out of suitable mavarious manifoldadvantages skilled in the art.

Having thus described the' invention, what is claimed as new is y In apunch, the combination of abed having a removable center-plate with anopening therein and a goose-neck rising from the rear thereof with ahead provided with oppositely disposed slotted ears, a handle having ahead eccentrically mounted between said ears, and a yoke mounted onsaidhandle and'carrying a punch which extends downwardly through said head,the rear portion of said yoke being adapted to engage the rear parts ofthe slots in the ears to limit the upward movement of substantially asdescribed.

In testimony whereof I have signed this specification in the presence oftwo subscribL ing witnesses.

THEODORE E. CLARK'. Witnesses: 1

ELMER YoKEs, EDGAR J. SNow.

